<template>
	<div>
		<div class="container loginIn" style="backgroundImage: url(/wendangguanli/img/back-img-bg.jpg)">

			<div :class="2 == 1 ? 'left' : 2 == 2 ? 'left center' : 'left right'"
				style="backgroundColor: rgba(225, 225, 225, 1)">
				<el-form class="login-form" label-position="left" :label-width="3 == 3 ? '56px' : '0px'">
					<div class="title-container">
						<h3 class="title" style="color: rgba(244, 91, 75, 1)">文档管理系统</h3>
					</div>
					<el-form-item :label="3 == 3 ? '用户名' : ''" :class="'style'+3">
						<span v-if="3 != 3" class="svg-container" style="color:rgba(136, 154, 164, 1);line-height:46px">
							<svg-icon icon-class="user" />
						</span>
						<el-input placeholder="请输入用户名" name="username" type="text" v-model="rulesForm.username" />
					</el-form-item>
					<el-form-item :label="3 == 3 ? '密码' : ''" :class="'style'+3">
						<span v-if="3 != 3" class="svg-container" style="color:rgba(136, 154, 164, 1);line-height:46px">
							<svg-icon icon-class="password" />
						</span>
						<el-input placeholder="请输入密码" name="password" type="password" v-model="rulesForm.password" />
					</el-form-item>
					<el-form-item class="code" :label="3 == 3 ? '验证码' : ''" :class="'style'+3">
						<span v-if="3 != 3" class="svg-container" style="color:rgba(136, 154, 164, 1);line-height:46px">
							<svg-icon icon-class="code" />
						</span>
						<el-input placeholder="请输入验证码" name="code" type="text" v-model="rulesForm.code" />
						<div class="getCodeBt" @click="getRandCode(4)" style="height:46px;line-height:46px">
							<span v-for="(item, index) in codes" :key="index"
								:style="{color:item.color,transform:item.rotate,fontSize:item.size}">{{ item.num }}</span>
						</div>
					</el-form-item>
					<el-form-item label="角色" prop="loginInRole" class="role">
						<el-radio v-for="item in menus" v-if="item.hasBackLogin=='是'" v-bind:key="item.roleName"
							v-model="rulesForm.role" :label="item.roleName">{{item.roleName}}</el-radio>
					</el-form-item>
					<el-button type="primary" @click="login()" class="loginInBt"
						style="padding:0;font-size:17px;border-radius:25px;height:40px;line-height:40px;width:100%;backgroundColor:rgba(244, 91, 75, 1); borderColor:rgba(244, 91, 75, 1); color:rgba(255, 255, 255, 1)">
						{{'1' == '1' ? '登录' : 'login'}}</el-button>
				</el-form>
			</div>

		</div>
	</div>
</template>
<script>
	import menu from "@/utils/menu";
	export default {
		data() {
			return {
				rulesForm: {
					username: "",
					password: "",
					role: "",
					code: '',
				},
				menus: [],
				tableName: "",
				codes: [{
					num: 1,
					color: '#000',
					rotate: '10deg',
					size: '16px'
				}, {
					num: 2,
					color: '#000',
					rotate: '10deg',
					size: '16px'
				}, {
					num: 3,
					color: '#000',
					rotate: '10deg',
					size: '16px'
				}, {
					num: 4,
					color: '#000',
					rotate: '10deg',
					size: '16px'
				}],
			};
		},
		mounted() {
			let menus = menu.list();
			this.menus = menus;
		},
		created() {
			this.setInputColor()
			this.getRandCode()
		},
		methods: {
			setInputColor() {
				this.$nextTick(() => {
					document.querySelectorAll('.loginIn .el-input__inner').forEach(el => {
						el.style.backgroundColor = "rgba(202, 202, 202, 1)"
						el.style.color = "rgba(129, 129, 129, 1)"
						el.style.height = "46px"
						el.style.lineHeight = "46px"
						el.style.borderRadius = "25px"
					})
					document.querySelectorAll('.loginIn .style3 .el-form-item__label').forEach(el => {
						el.style.height = "46px"
						el.style.lineHeight = "46px"
					})
					document.querySelectorAll('.loginIn .el-form-item__label').forEach(el => {
						el.style.color = "rgba(136, 154, 164, 1)"
					})
					setTimeout(() => {
						document.querySelectorAll('.loginIn .role .el-radio__label').forEach(el => {
							el.style.color = "rgba(136, 154, 164, 1)"
						})
					}, 350)
				})

			},
			register(tableName) {
				this.$storage.set("loginTable", tableName);
				this.$router.push({
					path: '/register'
				})
			},
			// 登陆
			login() {
				let code = ''
				for (let i in this.codes) {
					code += this.codes[i].num
				}
				if (!this.rulesForm.code) {
					this.$message.error("请输入验证码");
					return;
				}
				if (this.rulesForm.code.toLowerCase() != code.toLowerCase()) {
					this.$message.error("验证码输入有误");
					this.getRandCode()
					return;
				}
				if (!this.rulesForm.username) {
					this.$message.error("请输入用户名");
					return;
				}
				if (!this.rulesForm.password) {
					this.$message.error("请输入密码");
					return;
				}
				if (!this.rulesForm.role) {
					this.$message.error("请选择角色");
					return;
				}
				let menus = this.menus;
				for (let i = 0; i < menus.length; i++) {
					if (menus[i].roleName == this.rulesForm.role) {
						this.tableName = menus[i].tableName;
					}
				}
				this.$http({
					url: `${this.tableName}/login?username=${this.rulesForm.username}&password=${this.rulesForm.password}`,
					method: "post"
				}).then(({
					data
				}) => {
					if (data && data.code === 0) {
						this.$storage.set("Token", data.token);
						this.$storage.set("userId", data.userId);
						this.$storage.set("role", this.rulesForm.role);
						this.$storage.set("sessionTable", this.tableName);
						this.$storage.set("adminName", this.rulesForm.username);
						this.$router.replace({
							path: "/index/"
						});
					} else {
						this.$message.error(data.msg);
					}
				});
			},
			getRandCode(len = 4) {
				this.randomString(len)
			},
			randomString(len = 4) {
				let chars = [
					"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
					"l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
					"w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G",
					"H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
					"S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2",
					"3", "4", "5", "6", "7", "8", "9"
				]
				let colors = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"]
				let sizes = ['14', '15', '16', '17', '18']

				let output = [];
				for (let i = 0; i < len; i++) {
					// 随机验证码
					let key = Math.floor(Math.random() * chars.length)
					this.codes[i].num = chars[key]
					// 随机验证码颜色
					let code = '#'
					for (let j = 0; j < 6; j++) {
						let key = Math.floor(Math.random() * colors.length)
						code += colors[key]
					}
					this.codes[i].color = code
					// 随机验证码方向
					let rotate = Math.floor(Math.random() * 60)
					let plus = Math.floor(Math.random() * 2)
					if (plus == 1) rotate = '-' + rotate
					this.codes[i].rotate = 'rotate(' + rotate + 'deg)'
					// 随机验证码字体大小
					let size = Math.floor(Math.random() * sizes.length)
					this.codes[i].size = sizes[size] + 'px'
				}
			},
		}
	};
</script>
<style lang="scss" scoped>
	.loginIn {
		min-height: 100vh;
		position: relative;
		background-repeat: no-repeat;
		background-position: center center;
		background-size: cover;

		.left {
			position: absolute;
			left: 0;
			top: 0;
			width: 360px;
			height: 100%;

			.login-form {
				background-color: transparent;
				width: 100%;
				right: inherit;
				padding: 0 12px;
				box-sizing: border-box;
				display: flex;
				justify-content: center;
				flex-direction: column;
			}

			.title-container {
				text-align: center;
				font-size: 24px;

				.title {
					margin: 20px 0;
				}
			}

			.el-form-item {
				position: relative;

				.svg-container {
					padding: 6px 5px 6px 15px;
					color: #889aa4;
					vertical-align: middle;
					display: inline-block;
					position: absolute;
					left: 0;
					top: 0;
					z-index: 1;
					padding: 0;
					line-height: 40px;
					width: 30px;
					text-align: center;
				}

				.el-input {
					display: inline-block;
					height: 40px;
					width: 100%;

					& /deep/ input {
						background: transparent;
						border: 0px;
						-webkit-appearance: none;
						padding: 0 15px 0 30px;
						color: #fff;
						height: 40px;
					}
				}

			}


		}

		.center {
			position: absolute;
			left: 50%;
			top: 50%;
			width: 360px;
			transform: translate3d(-50%, -50%, 0);
			height: 446px;
			border-radius: 8px;
		}

		.right {
			position: absolute;
			left: inherit;
			right: 0;
			top: 0;
			width: 360px;
			height: 100%;
		}

		.code {
			.el-form-item__content {
				position: relative;

				.getCodeBt {
					position: absolute;
					right: 0;
					top: 0;
					line-height: 40px;
					width: 100px;
					background-color: rgba(51, 51, 51, 0.4);
					color: #fff;
					text-align: center;
					border-radius: 0 4px 4px 0;
					height: 40px;
					overflow: hidden;

					span {
						padding: 0 5px;
						display: inline-block;
						font-size: 16px;
						font-weight: 600;
					}
				}

				.el-input {
					& /deep/ input {
						padding: 0 130px 0 30px;
					}
				}
			}
		}

		.setting {
			& /deep/ .el-form-item__content {
				padding: 0 15px;
				box-sizing: border-box;
				line-height: 32px;
				height: 32px;
				font-size: 14px;
				color: #999;
				margin: 0 !important;

				.register {
					float: left;
					width: 50%;
				}

				.reset {
					float: right;
					width: 50%;
					text-align: right;
				}
			}
		}

		.style2 {
			padding-left: 30px;

			.svg-container {
				left: -30px !important;
			}

			.el-input {
				& /deep/ input {
					padding: 0 15px !important;
				}
			}
		}

		.code.style2,
		.code.style3 {
			.el-input {
				& /deep/ input {
					padding: 0 115px 0 15px;
				}
			}
		}

		.style3 {
			& /deep/ .el-form-item__label {
				padding-right: 6px;
			}

			.el-input {
				& /deep/ input {
					padding: 0 15px !important;
				}
			}
		}

		.role {
			& /deep/ .el-form-item__label {
				width: 56px !important;
			}

			& /deep/ .el-radio {
				margin-right: 12px;
			}
		}

	}
</style>
